Lock.



No. 824,652. PATENTED JUNE 26, 1906. J. HERZOG. LOOK.

APPLICATION FILED MAYM, 1905.

WITNESSES: NVE/VTOR W A) W UNITED STATES PATENT orrron.

JOHN HERZOG, OF SAGINAW, MICHIGAN, ASSIGNOR TO HERZOG ART FURNITURE 00.,A CORPORATION OF MICHIGAN.

LOCK.

Specification of Letters Patent.

Iatented June 26, 1906.

Application filed May 24,1905. Serial No. 261,941.

To all whom, it may concern;

Be it known that I, J OI-IN HERZOG, a citizen of the United States ofAmerica, residing at Saginaw, in the county of Saginaw and State ofMichigan, have invented certain new and useful Improvements in Locks, ofwhich the following is such a full, clear, and eXact description as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, forming apart hereof.

The object of this invention is to provide a lock-case which will be oneintegral structure and which will be cheap and strong.

A minor object of the invention is to pro vide a lock which may bereadily secured in position and which is particularly adapted for use indrawers, cabinets, and other articles of furniture.

These objects are attained in the device illustrated in the accompanyingdrawings, and the invention consists in certain novel features of thesame, as will be hereinafter first fully described and then particularlypointed out in the claims.

In the drawings referred to, Figure 1 is a plan view of a blank struckfrom sheet metal and shaped so that when properly manipulated it willform the lock case. Fig. 2 is a perspective of the lock-case formed fromthe blank shown in Fig. 1, the bolt being indicated in dotted lines.Fig. 3 is a longitudinal horizontal section of the lock, taken in theplane of the keyhole. Fig. 4 is a longitudinal vertical section, andFig. 5 is a transverse vertical section taken in the plane of thekeyhole.

In carrying out my present invention I employ a blank 1, of sheet metal,having two branches or leaves 2 3, connected by a central transverse web4. The side edges 5 6 of the branches project beyond the ends of the web4, and the edges of the branch 2 are formed into teeth 7, the saidbranch being also formed with keyhole-slots 8 and with slits or narrowslots 9 near its upper and lower side edges and a short distance inwardfrom its end edge, as clearly shown. The outer corners of the branch 3are cut away, as indi cated at 10, and in the upper projecting edge Iform small slots or openings 11 close together and near the inner cornerof said edge. A tongue 12 is presented on the end edge of the branch 8between the cut-away corners keyhole-slot 8 occupies in the branch 2.

The central web 4 is provided with an oblong slot 16 near its center andwith small holes 17 near its ends, the said ends being preferably givena circular form. The lock case or shell is evolved from the blank in thefollowing manner: The branches 2 3 are first folded into parallel planesby bending the blank on the lines a b, which constitute the side edgesof the web 4. The upper and lower edges of the branch 3 are then foldedor bent on the lines a c and b d, respectively, until they are at rightangles to the main body of the branch at which time they will touch thebranch 2 along the lines a c and I) f and constitute the top and bottomof the case or shell, the branches forming the sides and the web 4forming the front end of the same. The tongue 12 is then bent on theline 0 d and the lugs 13 inserted through the slits 9 in the branch 2,the extremities of the lugs being bent or clenched against the outerface of the said branch 2, so as to prevent the separation of thebranches. The upper and lower edges of the branch 2 are then bent overthe top and bottom of the case along the lines a e and I) f and theteeth 7 turned outward at right angles along the central lines of thecase, as will be readily understood. A key-centering pin 18 is securedin the perforation 15 and projects across the case to the keyhole 8.

In order to reinforce the front-end of the case, a wear-plate 19 may beriveted to the outer face of the web 4, the rivets being insertedthrough the openings 17. The bolt consists of a small bar 20, playing inthe slots 14 and 16 and having smooth sides. The upper edge of the boltis straight; but the lower edge is provided withanotch21, adapted to beengaged by the key in the operation of the lock. The lower edge of thebolt is also provided with stops 22 to limit the throw of the bolt, thestops being formed in the pres ent instance by making a second notch inthe bolt in rear of the notch 21 and causing the ends of the said notchto impinge against the inner end of the case. The slots 14 and 16 are sorelatively arranged that the lower end of the slot 145 is in a higherplane than the lower end of the slot 16, and consequently it willproject upward between the stops 22 to act therewith in limiting theplay of the bolt. A spring 23 has one end inserted through the slots 11, whereby it is secured and has its free end bearing upon the upperside of the bolt through the slot 14 to hold the bolt toward the lowerend of the said slot and insure the engagement of the stops and the endof the case. In order to guard more certainly against the slipping ofthe bolt from the lock or its failure to properly engage with the key, alug 24: may be formed on the edge of the bolt between the stops 22,thereby presenting supplemental notches 25, which will be thrown intoengagement with the end of the slot 14 by the spring, so that in orderto move the bolt it will be necessary to lift the same over the end ofthe slot against the tension of the spring. In order to accommodate thevibration of the bolt, the slot 14is made somewhat longer than the widthof the bolt but the slot 16 is shorter and is only long enough to permitthe bolt to move therethrough without avoidable friction. The lock isfitted in place by being driven into a mortise or seat prepared in theedge of the drawer or door and will be firmly held by the teeth 7 takinginto the wood, as will be readily understood. Should additional securitybe deemed advisable, the wear-plate could be extended beyond the ends ofthe front end of the case and fastening devices driven through the endsof the same into the drawer or door. The shell is provided with twokeyhole-slots having a circular end in common, so that the lock may beoperated either vertically or horizontally; but in the drawings I haveshown it in a horizontal position and have so described it for the sakeof convenience. The edge portions 5 and 6 have a slight spring action orplay upon each other, so that should the mortise not be cut to form aperfect fit for the lock the case will yield sufficiently to properlyenter the mortise.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is

1. A sheet-metal lock-case having its sides formed integral with itsends and having one side constructed to engage and be secured to theother side, the sides having their upper and lower edges bent inward andoverlapping.

2. A sheet-metal lock-case having a front web provided with a bolt-slot,sides formed integral with the said web, a rear end formed integral withone side and engaging the other side and provided with a boltslot, andflanges on the sides forming the top and bottom of the case, one of thesides being provided with a keyhole-slot.

3. A sheet-metal lock-case having a front web provided with a slot forthe lock-bolt, sides formed integral with the Web, one of the sideshaving a vertical slit, a tongue or back formed integral with the otherside and having a lug arranged to engage said vertical slit, the saidback having a slot for the lockbolt, and flanges on the sides extendinginwardly and overlapping, the flanges on one of the sides being providedwith teeth.

4. A blank for lock-cases having a central web provided with alongitudinally-disposed slot, leaves extending from the sides of theWeb, one of said leaves having serrated edges, provided with slits nearsaid edges and hav ing a keyhole-slot, and the other leaf having a pairof slots near the inner corner of one edge, having the outer corners ofboth edges cut away, having a slot near one cut-away portion, providedwith lugs projecting from its end, and having a perforation in its mainportion, said perforation occupying the same relative position as thekeyhole-slot in the first-mentioned leaf.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN HERZOG.

Witnesses:

RUTH BENJAMIN, Tnno. F. GAENSBAUER.

